<template>
	<view>
		<view class="search-box">
			<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<!-- 搜索建议列表 -->
		<view class="sugg-list" v-if="searchResults.length!==0">
			<view class="sugg-item" v-for="(item,i) in searchResults" :key="i" @click="gotoDetail(item)">
	<!-- 			<view class="goods-name">{{item.goods_name}}</view> -->
				<view class="goods-name">{{item}}</view>
				<uni-icons type="arrowright" size="16"></uni-icons>
			</view>	
		</view>
		<!-- 搜索历史 -->
		<view class="history-box" v-else>
			<!-- 标题区 -->
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="clean"></uni-icons>
			</view>
			<!-- 列表区 -->
			<view class="history-list">
			<uni-tag :text="item" v-for="(item,index) in histories" :key="index" @click="gotoList(item)"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				timer:null,
				kw:'',
				//搜索结果列表
				searchResults:[],
				//搜索历史数组
				historyList:[],
				// 数据
				data:''
			};
		},
		onLoad(){
			//获取历史存储
			this.historyList=JSON.parse(uni.getStorageSync('kw')||'[]')
			this.getdata()
		},
		methods:{
			//防抖 延时器
			input(e){
				clearTimeout(this.timer)
				this.timer = setTimeout(()=>{
					this.kw=e
					this.getSearchList()
				},500)
			},
			async getdata(){
			const{data:res}=await uni.$http.get('/cantlogin/getTips')
			this.data=res
			},
			
			async getSearchList(){
					if(this.kw.length===0){
						this.searchResults=[]
						return
					}
					var data1=[]
					this.data.forEach(item=>{
						var zifu=item.name
						if(zifu.indexOf(this.kw)!=-1)
						{	
							data1.push(item.name)
						}
						
					})
					this.searchResults=data1
					// this.savaSearchHistory()
						},
			
	

		gotoDetail(kw){
		var id=	this.data.filter(item=>item.name===kw)[0].id
			uni.redirectTo({
				url:'/pages/tips/tips?tips='+id
			})
		// uni.navigateTo({
		// 	//跳转到搜索目的地
		// 	url:'/pages/tips/tips?tips='+item.id
		// }),
		this.savaSearchHistory(kw)
		},
		//防止搜索历史列表出现相同搜索
		savaSearchHistory(item){
			const set= new Set(this.historyList)
			set.delete(item)
			set.add(item)
			this.historyList=Array.from(set)
			//对搜索历史数据持久化存储
			uni.setStorageSync('kw',JSON.stringify(this.historyList))
		},
		//清空搜索列表
		clean(){
			this.historyList=[];
			uni.setStorageSync('kw','[]')
		},
		gotoList(kw){
			let id=this.data.filter(item=>item.name===kw)[0].id
			uni.redirectTo({
				url:'/pages/tips/tips?tips='+id
				})
		}
		},
		computed:{
			histories(){
			return	[...this.historyList].reverse()
			}
		}
	}
</script>

<style lang="scss">
.search-box{
	position: sticky;
	top: 0;
	z-index: 999;
}
.sugg-list{
	padding: 0 5px;
	.sugg-item{
		display: flex;
		align-items: center;
		justify-content: space-between;
		font-size: 12px;
		padding: 13px 0;
		border-bottom: 1px solid #efefef;
		.goods-name{
			white-space:nowrap;
			overflow:hidden;
			text-overflow:ellipsis;
		}
	}
}
.history-box{
	padding: 0 5px;
	.history-title{
		display: flex;
		justify-content: space-between;
		height: 40px;
		align-items: center;
		font-size: 13px;
		border-bottom: 1px solid #efefef;
	}
	.history-list{
		display: flex;
		flex-wrap: wrap;
		.uni-tag{
			margin-top: 5px;
			margin-right: 4px;
		}
	}
}
</style>

